Single-arm type bird repellent shielding cover applied to high-voltage overhead line pole

Abstract

The invention provides a single-arm type bird repellent shielding cover applied to a high-voltage overhead line pole, and the single-arm type bird repellent shielding cover belongs to the field of line protection. The single-arm type bird repellent shielding cover is provided with a T-shaped middle shielding cover is arranged at a joint part of a lead wire and an insulator string; two opening endsalong the direction of the lead wire of the T-shaped middle shielding cover are provided with a left gun head cover and a right gun head cover separately; and the T-shaped middle shielding cover is integrally fixed / connected between the left gun head cover and the right gun head cover in an inserting or riveting manner. Through arranging the defensive shielding protection cover at the joint partof the overhead power transmission line conductor and the horizontal insulator string, a metal bowl at the tail end of an insulating arm and the bared conductor part are insulated and shielded, insulating extension at a specified length is performed along the direction of an overhead line, an electrical insulation distance between a bird nest and a power supply overhead line is increased, and effective isolation between the bird nest and an electric conductor is generated, so as to avoid a grounding failure of a high-voltage power supply line caused by bird nesting. The single-arm type bird repellent shielding cover applied to the high-voltage overhead line pole can be widely applied to the protection field of various kinds of high-voltage overhead power transmission lines adopting transverse insulator strings.

Description

technical field [0001] The invention belongs to the field of power line protection, and in particular relates to a defensive bird-repelling shielding device used for high-voltage power transmission overhead lines and tower poles. Background technique [0002] The insulator part of the 35kv tower in our jurisdiction adopts the cross-arm type line fixing mode, which is characterized in that the head end of the high-voltage insulator string is connected with the cross arm of the line tower pole, and its end is connected with the wire of the overhead transmission line; In the fixed mode, the high-voltage insulator string (also known as the insulating arm) is in the same horizontal plane as the wire of the transmission overhead line, or the angle between the plane where the bare wire and the insulator string are located and the horizontal plane is less than 30 degrees, forming a T-shaped connection structure. [0003] This cross-arm connection structure is very conducive to the n...

AI Technical Summary

Problems solved by technology

[0011] Active bird repelling in the form of sound, light, shadow, etc., on the one hand, requires a special power supply for driving, and the reliability and effective working time of the driving power supply restrict the normal working time of the bird repelling device; on the other hand, the bird repellent The class has a certain adaptability to repeated sound, light and shadow signals, and the bird repelling effect of repeated sound, light and shadow signals will be weakened or reduced after a long time; on the other hand, due to the existence of mechanical moving parts or electronic Circuit, in the wild environment, the working reliability of moving parts or electronic circuit parts will be affected to a certain extent. In severe cases, the entire bird repelling device will not be able to send out sound, light, and shadow signals, and lose the bird repelling effect.

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